import java.util.Scanner;

public class JudgmentOfLeapYears {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int y = sc.nextInt();
        if ((y%4==0&&y/100!=0) || y/400==0){
            System.out.println("yes");
        } else
            System.out.println("no");

    }
}
